- June 12, 2014
Remedial works to rooftop terrace and swimming pool by Strata Engineering Solutions in 2013. Near-beachfront strata property at Dee Why Parade, Dee Why NSW.
PROBLEMS
The rooftop terrace is located on the eastern end of the building and overlooks Dee Why Beach. Due to a deteriorated waterproofing membrane on the rooftop terrace, internal moisture penetration was affecting a number of units located directly below.
Also, the swimming pool windows were leaking, causing staining to internal carpets in the common area.
The reinforced concrete column which supports the rooftop terrace swimming pool had been affected by concrete spalling due to moisture penetration and low concrete cover.
As the rooftop waterproofing membrane had deteriorated, it left the reinforced concrete roof slab susceptible to moisture ingress which over time can cause damage to the concrete slab, leading to problems such as concrete spalling.
Had concrete spalling repairs not been carried out to the swimming pool structure, it had the potential to compromise the overall structural integrity of the reinforced concrete columns and haunches.
SOLUTIONS
SES acted as design engineer for the remedial works required and project manager and contract superintendant for the works on site.
SES produced tender documentation for the remediation of the above issues. This was sent to specialist building contractors experienced in this type of project for pricing. SES assessed the tenders submitted and provided a recommendation to accept the successful tendering contractor. A contract for the remedial works was drawn up by SES for the proposed works. SES acted as design engineer, project manager and contract superintendant for the works on site.
The remedial works broadly comprised:
- Removing existing tiles and deteriorated waterproofing membrane and installing a new 2 layer torch on waterproofing system, tile bed and tiles.
- Removing the existing pool lining, windows and carrying out the necessary concrete repairs to the pool structure, waterproofing works, followed by installation of new windows and the application of a new Quartzon lining to the pool.
RESULTS
The end result was a structurally adequate swimming pool structure and rooftop terrace. The appearance of the area was vastly improved adding significant value to this area for the building owners.
- Concrete Defects
- Water Damage
